Title:
WATER BACKUP PREVENTING SYSTEM AND MONITORING SYSTEM THEREFOR
Document Type and Number:
WIPO Patent Application WO1990000651
Kind Code:
A3
Abstract:
A water backflow preventing system is provided for a given area having a sewer line for receiving rain and other water where the sewer line is incapable of carrying, without backup, a given fow rate of water. The sewer line is provided at a given point therealong with at least one overflow opening into which opening water which cannot be handled by the sewer line will rise and overflow. Water storage tank means are buried in the ground below the sewer line and into which the overflow water from said opening will drain and be temporarily stored. The storage tank means have a volume to store many thousands of gallons of water which cannnot otherwise flow in the sewer line. A pump is placed in the bottom of the storage tank means. Various float switches are placed in different parts of the system for controlling the pump. They are arranged to prevent the operation of the pump when water backup valve conditions exist in the sewer line and to automatically render the pump means operative when backflow conditions disapear from the sewer line so that the storage tank means can be substantially emptied and accommodate overflow conditions which can be caused by a subsequent rainstorm.
Inventors:
REGAN PATRICK (US)
Application Number:
PCT/US1989/002894
Publication Date:
February 08, 1990
Filing Date:
June 29, 1989
Export Citation:
Assignee:
REGAN PATRICK (US)
International Classes:
E03F5/10; E03F7/00; E03F7/04; (IPC1-7): E03F7/00; E03F5/10
Foreign References:
| DE3310314A1 | 1984-09-27 | |||
| DE8503323U1 | 1985-06-20 | |||
| US4272640A | 1981-06-09 | |||
| US2928410A | 1960-03-15 | |||
| US2868380A | 1959-01-13 |
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